A telemetry unit in a weather balloon draws a constant current of 0.015 A from a 12.0 V power supply.
Calculate the electrical energy transferred to the unit during a flight period of 25 minutes25\text{ minutes}25 minutes.
Use the equation: E=I×V×tE = I \times V \times tE=I×V×t
Practise Edexcel GCSE Physics Electrical power with exam-style questions for Foundation and Higher tier. 38 questions, matched to the Edexcel GCSE Physics (1PH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.